that's what I said, if they have lechwe they will try to remove it because it is not indigenous in that area, just like nyalas, waterbucks and blesbok...according to Smithers' "Mammals of Southern Africa" red lechwe are only indigenous in the okavango delta...and because lechwe don't belong there, it won't be one of the species the park tries to protect

Ice the only mammals you listed above that qualify for endangered status is the black rhino. The roan and sable are classified similar to the red lechwe as least concern, therefore not even rated as a low risk. According to the IUCN Red list the only mammal in Mokala that is critically endangered is the black rhino.

Lions and cheetah (I know its not found in Mokala) are far more vulnerable than most of the antelope found in our parks.

when I wrote "endangered species" I was certainly not referring to any "official" list or status...I was merely quoting what mokala's field guide told me on my night drive...the following day I wrote down what I could memorize but until this very day I cannot remember the fifth animal she mentioned...so let me rephrase my remark:

one of the main reasons why mokala was proclaimed was (according to the guide who was involved in its establishment from the very beginning) to protect these animals I mentioned (roan and sable are certainly rare in ZA and the white backed vulture is -afaik- listed as near threatened)

to answer your question: none of the animals (except the black rhino) is on the list I was given